You should be talking about parents. Parents' group was originally established to facilitate the contact between home and school. At the beginning of the group, the purpose and matters needing attention of the group are explained. Its main function is home-school communication: for example, international students' homework, students' holiday notice, parents' meeting notice, etc. , can be notified here, very convenient. Parents can also introduce their own school and family education experience, and parents can discuss and communicate with each other. It is inappropriate to advertise in such a group. The head teacher or the head of the parent committee should communicate with the parents who advertise alone and ask them to stop advertising. Otherwise, it will change the original intention of establishing a parent group and affect other parents. Ordinary parents will stop advertising. If they don't listen to advice and continue to advertise, they will be removed from the parent group!